---
id: "CVE-2026-112639"
kind: "vulnerability"
aliases: ["CVE-2026-112639"]
title: "Apple Safari and iOS: use-after-free lets malicious web content run code"
severity: "unknown"
cvss: null
epss: null
exploited: false
status: "open"
category: "other"
products: []
ecosystems: []
tags: ["ios", "ipados", "macos", "other", "safari", "visionos"]
not_affected_if: ["already-updated"]
published_at: "2026-10-26T21:17:57+00:00"
first_seen_at: "2026-10-26T21:20:29+00:00"
updated_at: "2026-10-26T21:24:03+00:00"
sources: [{"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-112639", "first_seen_at": "2026-10-26T21:20:29+00:00"}]
---

# Apple Safari and iOS: use-after-free lets malicious web content run code

A use-after-free memory bug in Apple's WebKit-based browser and operating systems can be triggered by crafted web content. Per the description, an attacker could run arbitrary code on the affected device.

_Summary, check and fix written by a model from the sources; labelled as such._

## How to check

- Check the device or Safari version under Settings > General > About (iOS and iPadOS) or Safari > About Safari (macOS)
- Compare against fixed versions: Safari `27.2`, iOS and iPadOS `26.7.2` or `27.2`, macOS Golden Gate `27.2`, visionOS `27.2`

## Fix

- Update Safari to `27.2` on macOS
- Update iOS and iPadOS to `26.7.2` or `27.2`, macOS Golden Gate to `27.2`, visionOS to `27.2`

## Timeline

- 2026-10-26T21:20:29+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2026-112639

## From the sources

A use-after-free issue was addressed with improved memory management. This issue is fixed in Safari 27.2, iOS 26.7.2 and iPadOS 26.7.2, iOS 27.2 and iPadOS 27.2, macOS Golden Gate 27.2, visionOS 27.2. Processing maliciously crafted web content may lead to arbitrary code execution.

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_Free to read at a human pace. An API with keys and an MCP server are in preparation; early access: hello@infrastack.ai_